127871996

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 273137760

約数和(自身を除く): 145265764

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 89, 92, 97, 161, 178, 194, 322, 356, 388, 529, 623, 644, 679, 1058, 1246, 1358, 2047, 2116, 2231, 2492, 2716, 3703, 4094, 4462, 7406, 8188, 8633, 8924, 14329, 14812, 15617, 17266, 28658, 31234, 34532, 47081, 51313, 57316, 60431, 62468, 94162, 102626, 120862, 188324, 198559, 205252, 241724, 329567, 359191, 397118, 659134, 718382, 794236, 1318268, 1389913, 1436764, 2779826, 4566857, 5559652, 9133714, 18267428, 31967999, 63935998, 127871996]

約数ペア:

[(1, 127871996), (2, 63935998), (4, 31967999), (7, 18267428), (14, 9133714), (23, 5559652), (28, 4566857), (46, 2779826), (89, 1436764), (92, 1389913), (97, 1318268), (161, 794236), (178, 718382), (194, 659134), (322, 397118), (356, 359191), (388, 329567), (529, 241724), (623, 205252), (644, 198559), (679, 188324), (1058, 120862), (1246, 102626), (1358, 94162), (2047, 62468), (2116, 60431), (2231, 57316), (2492, 51313), (2716, 47081), (3703, 34532), (4094, 31234), (4462, 28658), (7406, 17266), (8188, 15617), (8633, 14812), (8924, 14329)]